VAZ 2115 engine its technical characteristics, device

Most VAZ-2115 models have a four-cylinder injection engine. There are options with other engines, but the classic “fifteenth” moves precisely with the help of an injector with an improved lubrication system. They began producing such power plants in 1994. Over more than twenty years of service, they have proven themselves to be easy-to-use and reliable motors. Let's figure out what characteristics the VAZ-2115 engine has.

Specifications and description

The VAZ 2115 has technical characteristics that are quite typical for the 2113-2115 family of models. Thus, the well-known engines of the 2111 and 1118 series were installed on the car. Let’s consider the main characteristics and design of the power unit:

VAZ 2111

VAZ 21114

VAZ 11183

Like the 2114, the 15th model had engines similar in characteristics and design. Of course, the VAZ 2115 engine did not receive the injector 16-valve power unit that car enthusiasts so wanted. Nevertheless, the car still managed to gain popularity and become popular not only in Russia, but also in the CIS countries.

Car electrical protection

To ensure the protection of the electronic components of the VAZ 2115 Samara, knife-shaped safety inserts are used. The devices are located in a mounting block installed in the air intake duct in the engine compartment. The module is closed on top with a plastic cover secured with two latches.

Location of fuses in block 2114-3722010-60

The purpose of the fuses is given in the table.

The location of the elements and the appearance of the switching boxes differ depending on the year of manufacture of the VAZ 2115. There are cars with blocks 2114-3722010-60 and 2114-3722010-18.

On cars with an injection engine there is an additional unit located in the front passenger's feet. The box is designed for three relays and three fuses (15A), and is covered with a plastic shield on top. The cover is secured with two self-tapping screws.

List of electrical components in the cabin unit:

• fuel pump activation controller;
• main ECM control relay;
• cooling system fan contact group;
• fuse link for the power supply circuit of the electric motor of the gasoline supply pump and injection nozzles (installed on top);
• protection of sensor wiring, cooling system fan and canister purge valve (middle position);
• fuse for the injection and ignition system controller (lowest).

General view of the interior relay block and fuses

Some VAZ 2115 vehicles have additional fuses located directly in the wiring harnesses:

• to protect the fog lamp on the rear of the car (at 8A);
• for safe operation of the standard heating of the front seats (at 16A);
• for powering central locking gearmotors (16A).

Service and Frequently Asked Questions

The design of the 2115 engine allows the car enthusiast to carry out vehicle maintenance with his own hands. The service interval is 13-15 thousand kilometers. For those who want to preserve the engine longer and extend its service life, it is recommended to reduce the period of scheduled maintenance to 10,000 km.

In addition to the scheduled oil change, other diagnostic work should be carried out on the VAZ 2115 engine at each service center. For example, it is necessary to visually inspect the engine for leaks, check the condition of the timing belt and diagnose the performance of all systems and sensors. It is worth remembering that good maintenance extends the life of the engine.

FAQ

After looking through the forums and talking with auto mechanics, we can come to the conclusion that owners of the VAZ 2115 engine with 8-valve injector ask the same questions every time. Let's try to take into account the data obtained, and then group the questions and give answers to them.

• Do valves bend in a VAZ 2115? — As with any other vehicle, of course it’s oppressive. This happens when the timing belt breaks. To prevent this from happening, it must be changed every 45-50 thousand kilometers or if failure is suspected. It is worth noting that it will not only bend the valves, but also damage related elements, and may also leave a mark on the pistons. In any case, this will lead to a major overhaul of the power unit.
• Where is the engine number on the VAZ 2115? — As in all Lada models, you can find the engine number on the gearbox side, near the thermostat. The engine number always has a pad on the cylinder block, which is located in a visible place.
• What is the oil volume in the 2115 engine? — The engine oil volume is 3.5 liters. But, with this question, car enthusiasts ask another one - What oil is best to fill in the 2115 engine? — The most recommended motor oil for the engine is considered to be 10W-40. Also, auto mechanics recommend using 5W-30 and 5W-40. In this case, the oil manufacturer remains at the discretion of the vehicle owner.

Fuel tank design

The main function of a fuel tank is to store a certain amount of fuel. At the same time, everything must be organized so that the likelihood of a fire hazard is minimized.

On VAZ cars the fuel tank is located under the rear seats. Due to this placement, in the event of serious accidents and car overturns, the tank in most cases remains undamaged. VAZ fuel tanks are made of leaded steel sheets. Thanks to a thin layer of lead that protects against corrosion, the service life of the tank is significantly increased. The outside of the fuel tank is covered with dark enamel.

The fuel tank, covered with dark enamel, is reliably protected from corrosion

The fuel storage volume of the VAZ 2108 and other similar models is 43 liters. This takes into account the reserve, but it is not recommended to fill the tank to the brim. You should always leave a free volume of about four liters. It is especially important to do this in the summer, since the fuel expands as the temperature rises. If the tank is filled to the brim, then after swelling it may simply burst. The volume of the VAZ gas tank is designed in such a way that the autonomous mileage is enough for 500 kilometers, and this is considered a normal road segment in modern conditions.

The tank is securely fixed to the car body using flexible and durable plate-type clamps. Rubber gaskets must be placed under the clamps to ensure a tighter connection.

Engine repair

Repair of the VAZ 2115 engine is carried out typically for the entire series of Samara and Samara 2 engines. Thus, replacing the VAZ 2115 thermostat is carried out within half an hour. To carry out the procedure, you will need to drain the coolant and unscrew the housing. Then replace the thermostat itself directly.

Also, the water pump and gas distribution mechanism repair kit are very easy to change. Every car enthusiast can change engine oil without problems, and a beginner can find instructions on the Internet.

As for major repairs, everything is much more complicated here, since this procedure is recommended to be carried out in a car service center. Not every car enthusiast knows how to repair or bore a cylinder block. Other operations, such as cleaning injectors, are also recommended to be carried out in a car service center.

How does the controller monitor the operation of the injector?

When determining the specific position and opening time of the injector design, the specific volume of fuel entering the valves of the VAZ-2110 cylinder is determined. At the same time, thanks to special sensors installed on the motor, the on-board computer records specific values ​​and transmits them to the controller.

Subsequently, the controller, based on the information coming from the on-board computer, makes a decision on the position and duration of opening of the injector damper. If the controller malfunctions, the injectors will not be adjusted correctly, and the engine may stall while driving.

Tip: when starting the engine, the injector controller operates in asynchronous mode until the engine reaches a certain number of revolutions. That is why, after replacing the silent blocks of the front control arms on a VAZ-2110, you should warm up the car for 10-15 minutes.

Engine modification and tuning

Tuning the VAZ 2115 engine is divided into two substages - mechanical modification and chip tuning. The first option involves boring the cylinder block and installing an engine kit. But, as practice shows, mechanical tuning of the VAZ 2115 ends with superficial modifications to the engine.

For example, by installing silicone pipes, as well as a “zero” resistance filter. Although there are motorists who go all the way and do a complete mechanical tuning of the engine.

Chip tuning of the VAZ 2115 is carried out according to the scheme. The car enthusiast chooses one of the options: increasing power, reducing consumption or balanced, and after that the auto electrician programs the electronic engine control unit to the desired result.

The development of modern technologies makes it possible to carry out such an operation independently, without trips to a car service center. It is worth remembering that one awkward movement can lead to the engine working incorrectly or not starting at all.

Malfunctions

VAZ 2115 engine capacity, technical characteristics

The larger the engine capacity, the more powerful the car, and, as a rule, the larger it is.
There is no point in installing a small-capacity engine on a large car, the engine simply cannot cope with its weight, and the opposite is also pointless - installing a large engine in a light car. Therefore, manufacturers are trying to match the engine... to the price of the car. The more expensive and prestigious the model, the larger the engine capacity and the more powerful it is. Budget versions rarely boast a cubic capacity of more than two liters. Engine displacement is expressed in cubic centimeters or liters. Whichever is more convenient for you.

The engine capacity of the Lada 2115 Samara is from 1.5 to 1.6 liters.

Engine power of Lada 2115 Samara is from 68 to 81 hp.

Engine Lada 2115 Samara 1997, sedan, 1st generation

03.1997 — 01.2013

Owner reviews

00000095000000, 2108-1103010-11 Order code 001428 Manufacturer DAAZ 2 reviews Looks like a semi-finished product, there is no gasket between the cap and the neck, which means gasoline vapors will escape, I don’t know, maybe I got such a copy, but this is a VAZ-2108 fuel tank cap with a code lock Applicable show Article 2108-1103010КД all Articles additional. To understand this issue in more detail, it is necessary to consider all the reasons and nuances that affect the decrease or increase in fuel consumption.

The main culprits of overspending

Monitor the main parameters of the gas distribution system, valve timing, valve fit to the head seats, wear of the cams, camshaft bearings and timing gears, condition of the cylinder head gasket and head, clearances between the bushings and valve stems, depth of valve recessing in the cylinder head seats. It received a power of 90 horsepower, which accelerated the car to 185 kilometers per hour, while the time to reach the first hundred was reduced and required only 11.